Electric gas-lighting burner



(No Model.)

W. E. ORA-M.

ELEGIRIG GAS LIGHTING BURNER.

No. 569,785. Patented Oct. 20, 1896.

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UNITED STATES PATENT FFl CEa \VILLIAM E. GRAN, OF BOSTON, MASSACHUSETTS.

SPECIFICATION forming part of Letters Patent No. 569,785, dated October 20, 1896.

Application filedd'anuary 29,1896 Serial No. 577,225. (No model.)

T 0 all whom it may concern.-

Be it known that 1, WILLIAM E. CRAM, of Boston, in the county of Suffolk and State of Massachusetts, have invented certain new and useful Improvements in Electric Gas- Lighting Burners, of which the following is a specification.

This invention relates to a gas-lighting burner which is equipped with a movable electrode connected with the gas-cock and arranged to cooperate with a fixed electrode adjacent to the tip of the burner to produce a spark while the cock is being moved to turn on the gas, the spark being produced in the stream of gas, so that it ignites the latter.

The invention has for its object to provide a simple and efiicient construction whereby the movable electrode will be caused to cooperate with the fixed electrode in making a spark while the cock is being moved to turn on the gas, but will avoid contact with the fixed electrode while the cock is being turned to shut off the gas, to the end that there may be no unnecessary closing of the circuit and no possibility of the electrodes remaining permanently in contact after the cock has been turned to shut off the gas.

The invention consists in the improvements which I will now proceed to describe and claim.

Of the accompanying drawings, forming a part of this specification, Figures 1 and 2 represent side elevations of a gas-burner pro vided with my improvement. Figs. 3 and 4 represent side elevations showing the movable electrode at the same point relatively to the extremes of its movement, Fig. 3 showing the position of the said electrode during the turning-on movement of the cock, while Fig. 4 shows its position during the shuttingoff movement. Fig. 5 represents a section on line 5 5 of Fig. 1.

The same letters of reference indicate the same parts in all the figures.

In the drawings,. a represents the pro ,jccting portion of the cock of a gas-burner, the latter being of anysuitable construction and provided with a tip (I and with a fixed electrode 0, located in the usual relation to the tip, so that a spark caused by the cooperation, with the fixed electrode, of the movable electrode hereinafter described will be in the current of gas issuing from the tip and will ignite the same.

(Z represents a lever which passes through a slot a in the cook a, and is connected to the cock by a pivot-pin d, which permits the lever to oscillate toward and from the tip 17 in a plane parallel with the aXis of the cock.

To the upper end of the lever cl is secured an electrode c, having an elastic terminal portion adapted to wipe over the fixed electrode 0 when the cock is being moved to turn on the gas, the separation of the two electrodes causing a spark in the usual way. The lower portion of the lever (Z projects below the cock to and enters a cam-shaped slot f, formed in a crank-arm f, which is affixed to a stud f journaled in a bearing formed in an ear or bracket g, affixed to the burner. To the lower portion of the stud f is connected an operating rod or handle h.

When the stud f is turned in one direction, its engagement with the lever cl causes it to move the latter and the cock in the direction required to turn on the gas, this move-' ment causing the upper portion of the lever d to carry the electrode 6 across the fixed electrode 0 and to separate it therefrom, thus causing a spark in the stream of gas. hen the stud f is turned in the opposite direction, the crank f moves the lever d and the cock in the direction required to shut olf the gas, the electrode 6 being carried back to its starting position. The longer sides of the slot f in the crank-arm f are eccentric to the axis of rotation of the stud f and are arranged so that when the crank-arm is in the position it occupies when the gas is shut off the lower end of the lever (Z is moved outwardly from the burner and the upper end is moved correspondingly inward toward the burner, as shown in Fig. 5.

lVhen the crank-arm f is moved to turn on the gas, the relative positions of the ends of the lever cl remain as just described, the upper end of the lever passing in such pronimity to the fixed electrode that the movable electrode makes contact with it, as shown in Fig. 3, and then separates from it; W'hen the Olfillk fll'lll is turned in the opposite direction to shut off the gas, the eccentric sides of the slot f swing the lower end of the lever d inwardly toward the burner and the upper IOO i n I 05569 785 my o'seilia its aosi ii' el'e tron a *bu rnin g'iwifiho i n if we in m'lemgemeneb ingress ran flnmwhen r roe in nine?" baokwardzromn L k m n-invention; na'neiyegp pwaiwfi ,3 from" the ouie {when end maybe :iermei 01" extension? and carrying an "electrode which is arranged to permit a partial closing of the cock Without coming in contact with adapted" to oseflia te t3 er enabler the flame, may be used in connection with 1 give; ighfinibmtne od ieleetyegle oak, e ge in ani i V Reve' dfingihig lener to tem" carry i-he I V & electrode 2 1111:3155; for 5w win change/fi e paian oi 7 inmkeeont i one znoyement "EfiXBriQl lief the "30 eke.

Aneieeiwie gas-li fixedeleetmfimaeonk, wane \Vitnesses:

A. D. HARRISON, A. D. ADAMS.

I WELLIAM E: CRAB; 

